Numerical Simulation for Temperature Field and Salt Heave Influential Depth Estimation in Sulfate Saline Soil Highway Foundations.
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| Title: | Numerical Simulation for Temperature Field and Salt Heave Influential Depth Estimation in Sulfate Saline Soil Highway Foundations. |
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| Authors: | Feng, Ruiling1 (AUTHOR) rlfeng@bjtu.edu.cn, Wu, Lijian2 (AUTHOR) lj.wu@rioh.cn, Wang, Bin3 (AUTHOR) bwang@bjtu.edu.cn |
| Source: | International Journal of Geomechanics. Oct2020, Vol. 20 Issue 10, p1-12. 12p. |
| Subjects: | Computer simulation, Soil classification, Atmospheric temperature, Finite element method, Salt, Soil salinity, Bearing capacity of soils |
| Abstract: | Highway foundation cracking as a result of salt heave is an issue in regions with wide saline soil distribution. The aim of this study is to estimate the influential depth of salt heave on highway foundations based on the temperature field and heave-initiation and heave-sensitive ranges. The temperature in highway foundations was measured using field-installed geothermometers, and numerical simulation using the finite-element method (FEM) was conducted to estimate the temperature field in highway foundations. Temperatures under the highway centerline and shoulders were investigated. Three types of soil (lean clay, eolian sand, and sand gravel) and three levels of salinity (0%, 1.3%, and 3.0%) were included for analysis. The results showed that the influential depth owing to air temperature change under the shoulder was greater than that under the centerline. The temperature change in the subgrade lagged behind the air temperature change. Numerical simulation using the FEM was able to predict the temperature change in the subgrade associated with the air temperature change. Salinity and soil type had a significant influence on the temperature field in the subgrade. The influential depth of salt heave on highway foundations was determined based on the temperature field and the salt heave properties of the soils. This study provides a good reference for the salt heave characteristics of saline soil highway foundations. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Geomechanics is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 148386478 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Numerical Simulation for Temperature Field and Salt Heave Influential Depth Estimation in Sulfate Saline Soil Highway Foundations. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Feng%2C+Ruiling%22">Feng, Ruiling</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> rlfeng@bjtu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wu%2C+Lijian%22">Wu, Lijian</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> lj.wu@rioh.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Bin%22">Wang, Bin</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> bwang@bjtu.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Geomechanics%22">International Journal of Geomechanics</searchLink>. Oct2020, Vol. 20 Issue 10, p1-12. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Soil+classification%22">Soil classification</searchLink><br /><searchLink fieldCode="DE" term="%22Atmospheric+temperature%22">Atmospheric temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Salt%22">Salt</searchLink><br /><searchLink fieldCode="DE" term="%22Soil+salinity%22">Soil salinity</searchLink><br /><searchLink fieldCode="DE" term="%22Bearing+capacity+of+soils%22">Bearing capacity of soils</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Highway foundation cracking as a result of salt heave is an issue in regions with wide saline soil distribution. The aim of this study is to estimate the influential depth of salt heave on highway foundations based on the temperature field and heave-initiation and heave-sensitive ranges. The temperature in highway foundations was measured using field-installed geothermometers, and numerical simulation using the finite-element method (FEM) was conducted to estimate the temperature field in highway foundations. Temperatures under the highway centerline and shoulders were investigated. Three types of soil (lean clay, eolian sand, and sand gravel) and three levels of salinity (0%, 1.3%, and 3.0%) were included for analysis. The results showed that the influential depth owing to air temperature change under the shoulder was greater than that under the centerline. The temperature change in the subgrade lagged behind the air temperature change. Numerical simulation using the FEM was able to predict the temperature change in the subgrade associated with the air temperature change. Salinity and soil type had a significant influence on the temperature field in the subgrade. The influential depth of salt heave on highway foundations was determined based on the temperature field and the salt heave properties of the soils. This study provides a good reference for the salt heave characteristics of saline soil highway foundations. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Geomechanics is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1061/(ASCE)GM.1943-5622.0001843 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 1 Subjects: – SubjectFull: Computer simulation Type: general – SubjectFull: Soil classification Type: general – SubjectFull: Atmospheric temperature Type: general – SubjectFull: Finite element method Type: general – SubjectFull: Salt Type: general – SubjectFull: Soil salinity Type: general – SubjectFull: Bearing capacity of soils Type: general Titles: – TitleFull: Numerical Simulation for Temperature Field and Salt Heave Influential Depth Estimation in Sulfate Saline Soil Highway Foundations. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Feng, Ruiling – PersonEntity: Name: NameFull: Wu, Lijian – PersonEntity: Name: NameFull: Wang, Bin IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 15323641 Numbering: – Type: volume Value: 20 – Type: issue Value: 10 Titles: – TitleFull: International Journal of Geomechanics Type: main |
| ResultId | 1 |
